In a grillage column footing, if a column load (W) is distributed through a column base of length (a) to the grillage beam of length (L), the maximum bending moment (M) is given by

- 1
  
  $M = \frac{W}{2} (L - a)$
- 2
  
  $M = \frac{W}{4} (L - a)$
- 3
  
  $M = \frac{W}{6} (L - a)$
- 4
  
  $M = \frac{W}{8} (L - a)$

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